Improvement in steam-heaters



Claim of a. hydrostatic column, actuated by the iuctn- -Iclaim- 4ating or varying pressure of sten-n1 in thc gener- .Such a. construction, combination; and arrangeator.

;ment of parts constituting :t'low-pressnre steam ap l EDWARD BOURNE.

paratus for warming-bi1ildings as that thc opening Vitnesse's: :md closing of the air-vents of theradiators will be J OSI-Arr W. Enns,

done automatically, that is, by the rising and falling I ANDREW HUMBERT@ 

